Arena in colossus boss fight slightly bugged PoE2

The arena around the edges of the colossus boss fight in "A Crown of Stone" are slightly bugged in that the player can move to the destroyed edges and glitch up and down on the screen as though they are falling and then teleporting straight back up. Doesn't break the fight at all but is a troublesome glitch during the fight if you happen to brush against the edges.

Unsure of the best way to show evidence of what I mean so I have attached some links to a clip I've taken of the bug hope it helps.

https://drive.google.com/file/d/1rFKYzVVgGic8CN9HAQI2rFaCjudx1xkq/view?usp=sharing

https://drive.google.com/file/d/14NlHp8ILxbI0qQ8BaaIzbc-OJQw_ii5C/view?usp=sharing

He also seems to sit at 99% freeze buildup a lot without moving despite taking more hits unsure if this is another bug or intentional invulnerability during certain attack sequences.